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Highway pavement construction method

A construction method and road technology, applied in the direction of roads, roads, road repairs, etc., can solve the problems of incomplete process, long transportation distance, poor mixing effect, etc., to avoid secondary reverse transportation, high degree of mechanization, and guaranteed load strength Effect

Inactive Publication Date: 2018-01-09
NANCHANG INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in many areas, especially in rural areas, most of the places where roads are laid are agricultural and forestry lands, where it is difficult to use electricity for construction, and the transportation distance is long. Water is seriously defective, and it is easy to fail to complete the process within the initial setting time of cement. Most of them adopt the method of manual spreading of cement, which not only requires a lot of physical labor and causes a lot of dust, but also the cement dosage is difficult to control accurately, and the mixing effect is also poor. At the same time, the existing pavement is also prone to cracking and subsidence

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A highway pavement construction method, comprising the steps of:

[0028] S1. Use a vibratory road roller to carry out initial pressure on the roadbed, and then complete the repair of the roadbed, and remove all crushed, bulged, and empty drums;

[0029] S2. Lay the self-made lime soil on the roadbed after the roadbed is checked and accepted to form a pavement cushion;

[0030] S3. On the top of the cushion layer, first use a gravel spreader to spread the granular material in layers according to the predetermined width and thickness, and use rolling equipment to fully roll the laid gravel layer, and use a grader after the rolling is completed For leveling, use a powder spreader to spread the steel fiber self-compacting cement evenly on the gravel layer according to the predetermined dose;

[0031] S4. Use a cold recycling machine to mix the spread steel fiber self-compacting cement according to the predetermined water flow rate and travel speed to form the pavement bas...

Embodiment 2

[0035] A highway pavement construction method, comprising the steps of:

[0036] S1. Use a vibratory road roller to carry out initial pressure on the roadbed, and then complete the repair of the roadbed, and remove all crushed, bulged, and empty drums;

[0037] S2. Lay the self-made lime soil on the roadbed after the roadbed is checked and accepted to form a pavement cushion;

[0038] S3. On the top of the cushion layer, first use a gravel spreader to spread the granular material in layers according to the predetermined width and thickness, and use rolling equipment to fully roll the laid gravel layer, and use a grader after the rolling is completed For leveling, use a powder spreader to spread the steel fiber self-compacting cement evenly on the gravel layer according to the predetermined dose;

[0039] S4. Use a cold recycling machine to mix the spread steel fiber self-compacting cement according to the predetermined water flow rate and travel speed to form the pavement bas...

Embodiment 3

[0043] A highway pavement construction method, comprising the steps of:

[0044] S1. Use a vibratory road roller to carry out initial pressure on the roadbed, and then complete the repair of the roadbed, and remove all crushed, bulged, and empty drums;

[0045] S2. Lay the self-made lime soil on the roadbed after the roadbed is checked and accepted to form a pavement cushion;

[0046] S3. On the top of the cushion layer, first use a gravel spreader to spread the granular material in layers according to the predetermined width and thickness, and use rolling equipment to fully roll the laid gravel layer, and use a grader after the rolling is completed For leveling, use a powder spreader to spread the steel fiber self-compacting cement evenly on the gravel layer according to the predetermined dose;

[0047] S4. Use a cold recycling machine to mix the spread steel fiber self-compacting cement according to the predetermined water flow rate and travel speed to form the pavement bas...

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Abstract

The invention discloses a highway pavement construction method, which comprises the following steps of primarily pressing a roadbed by adopting a vibrating road roller, then finishing repair of the roadbed, and eliminating all crushed matters, bulges and hollowing matters; laying self-made limestone soil on the roadbed to form a pavement bedding; spreading aggregates on the bedding layers by layers by adopting a crushed stone spreader according to a preset width and a preset thickness, fully rolling a laid crushed stone layer by adopting rolling equipment, performing leveling after rolling byadopting a land leveling machine, and uniformly spreading steel fiber reinforced self-compacting cement on the crushed stone layer according to a preset dosage by adopting a powder spreading vehicle;performing mixing to form a pavement base course by adopting a cold recycling machine; and constructing a seal course on the pavement base course, and then laying a pavement surface course. The highway pavement construction method is short in construction period, reduces pollution to environment while reducing the manpower and ensures the loading strength, the fatigue resistance, the compressive strength, the impact strength and the stability of a pavement.

Description

technical field [0001] The invention relates to a construction method, in particular to a highway pavement construction method. Background technique [0002] Highway is an important part of the whole transportation. In short-distance transportation, highway can be used as distribution line to make up for the shortage of railway, water transportation and air transportation. In long-distance transportation, it can also play the role of main line. Highways play an important role in people's life and national economy. However, in many areas, especially in rural areas, most of the places where roads are laid are agricultural and forestry lands, where it is difficult to use electricity for construction, and the transportation distance is long. Water is seriously defective, and it is easy to fail to complete the process within the initial setting time of cement. Most of them adopt the method of manual spreading of cement, which not only requires a lot of physical labor and causes ...

Claims

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Application Information

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IPC IPC(8): E01C21/00E01C3/04E01C3/02E01C7/18C04B28/06
CPCE01C21/00E01C3/04E01C3/02E01C7/18C04B28/06C04B14/48C04B7/02C04B14/386C04B14/062C04B14/28C04B24/26
Inventor 刘福明曹细春杨志平王瑜徐文光熊杰
Owner NANCHANG INST OF TECH
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